I must lavish you must lavish she must lavish we must lavish you must lavish they must lavish
V-ing form
I must be lavishing you must be lavishing she must be lavishing we must be lavishing you must be lavishing they must be lavishing
Perfect
I must have lavished you must have lavished she must have lavished we must have lavished you must have lavished they must have lavished
V-ing perfect
I must have been lavishing you must have been lavishing she must have been lavishing we must have been lavishing you must have been lavishing they must have been lavishing
Negation
Simple form
I must not lavish you must not lavish she must not lavish we must not lavish you must not lavish they must not lavish
V-ing form
I must not be lavishing you must not be lavishing she must not be lavishing we must not be lavishing you must not be lavishing they must not be lavishing
Perfect
I must not have lavished you must not have lavished she must not have lavished we must not have lavished you must not have lavished they must not have lavished
V-ing perfect
I must not have been lavishing you must not have been lavishing she must not have been lavishing we must not have been lavishing you must not have been lavishing they must not have been lavishing
Interrogative form
Simple form
must I lavish? must you lavish? must she lavish? must we lavish? must you lavish? must they lavish?
V-ing form
must I be lavishing? must you be lavishing? must she be lavishing? must we be lavishing? must you be lavishing? must they be lavishing?
Perfect
must I have lavished? must you have lavished? must she have lavished? must we have lavished? must you have lavished? must they have lavished?
V-ing perfect
must I have been lavishing? must you have been lavishing? must she have been lavishing? must we have been lavishing? must you have been lavishing? must they have been lavishing?
Interro-negative form
Simple form
must I not lavish? must you not lavish? must she not lavish? must we not lavish? must you not lavish? must they not lavish?
V-ing form
must I not be lavishing? must you not be lavishing? must she not be lavishing? must we not be lavishing? must you not be lavishing? must they not be lavishing?
Perfect
must I not have lavished? must you not have lavished? must she not have lavished? must we not have lavished? must you not have lavished? must they not have lavished?
V-ing perfect
must I not have been lavishing? must you not have been lavishing? must she not have been lavishing? must we not have been lavishing? must you not have been lavishing? must they not have been lavishing?